Meaning of Infusoria

In•fu•so•ri•a

Pronunciation: (in"fyoo-sôr'ē-u, -sōr'-), [key]
— n.pl.
  1. protozoans of the phylum Ciliophora (or class Ciliata).
  2. (formerly) any of various microscopic organisms found in infusions of decaying organic matter.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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